To determine which positions of the Moon produce the highest possible tides, we need to consider the concept of spring tides, which occur when the Sun, Earth, and Moon are aligned. This alignment occurs during the full moon and new moon phases, resulting in the highest tidal ranges.
If you can identify the positions where the Moon is either in alignment with the Sun and Earth (e.g., the new moon and full moon positions) or aligned directly across from the Sun relative to Earth, those would be the positions that produce the highest possible tides.
If you have an image or diagram to refer to, look for the Moon’s positions during a full moon (when it is opposite the Sun) and a new moon (when it is in line with the Sun). Typically, these two positions would be the correct ones for producing the highest tides.